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source: trunk/kernel/kern/rpc.c @ 574

Last change on this file since 574 was 564, checked in by alain, 6 years ago
Complete restructuration of kernel locks.
File size: 85.4 KB

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1	/*
2	* rpc.c - RPC operations implementation.
3	*
4	* Author Alain Greiner (2016,2017,2018)
5	*
6	* Copyright (c) UPMC Sorbonne Universites
7	*
8	* This file is part of ALMOS-MKH.
9	*
10	* ALMOS-MKH is free software; you can redistribute it and/or modify it
11	* under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; version 2.0 of the License.
13	*
14	* ALMOS-MKH is distributed in the hope that it will be useful, but
15	* WITHOUT ANY WARRANTY; without even the implied warranty of
16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17	* General Public License for more details.
18	*
19	* You should have received a copy of the GNU General Public License
20	* along with ALMOS-MKH; if not, write to the Free Software Foundation,
21	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22	*/
23
24	#include <kernel_config.h>
25	#include <hal_kernel_types.h>
26	#include <hal_atomic.h>
27	#include <hal_remote.h>
28	#include <hal_irqmask.h>
29	#include <hal_special.h>
30	#include <printk.h>
31	#include <remote_sem.h>
32	#include <core.h>
33	#include <mapper.h>
34	#include <chdev.h>
35	#include <bits.h>
36	#include <thread.h>
37	#include <cluster.h>
38	#include <process.h>
39	#include <vfs.h>
40	#include <fatfs.h>
41	#include <rpc.h>
42
43
44	/////////////////////////////////////////////////////////////////////////////////////////
45	// Array of function pointers and array of printable strings.
46	// These arrays must be kept consistent with enum in rpc.h file.
47	/////////////////////////////////////////////////////////////////////////////////////////
48
49	rpc_server_t * rpc_server[RPC_MAX_INDEX] =
50	{
51	&rpc_pmem_get_pages_server, // 0
52	&rpc_pmem_release_pages_server, // 1
53	&rpc_undefined, // 2 unused slot
54	&rpc_process_make_fork_server, // 3
55	&rpc_undefined, // 4 unused slot
56	&rpc_undefined, // 5 unused slot
57	&rpc_thread_user_create_server, // 6
58	&rpc_thread_kernel_create_server, // 7
59	&rpc_undefined, // 8 unused slot
60	&rpc_process_sigaction_server, // 9
61
62	&rpc_vfs_inode_create_server, // 10
63	&rpc_vfs_inode_destroy_server, // 11
64	&rpc_vfs_dentry_create_server, // 12
65	&rpc_vfs_dentry_destroy_server, // 13
66	&rpc_vfs_file_create_server, // 14
67	&rpc_vfs_file_destroy_server, // 15
68	&rpc_vfs_inode_load_server, // 16
69	&rpc_vfs_mapper_load_all_server, // 17
70	&rpc_fatfs_get_cluster_server, // 18
71	&rpc_undefined, // 19 unused slot
72
73	&rpc_vmm_get_vseg_server, // 20
74	&rpc_vmm_get_pte_server, // 21
75	&rpc_kcm_alloc_server, // 22
76	&rpc_kcm_free_server, // 23
77	&rpc_mapper_move_buffer_server, // 24
78	&rpc_mapper_get_page_server, // 25
79	&rpc_vmm_create_vseg_server, // 26
80	&rpc_undefined, // 27 unused slot
81	&rpc_vmm_set_cow_server, // 28
82	&rpc_vmm_display_server, // 29
83	};
84
85	char * rpc_str[RPC_MAX_INDEX] =
86	{
87	"PMEM_GET_PAGES", // 0
88	"PMEM_RELEASE_PAGES", // 1
89	"undefined", // 2
90	"PROCESS_MAKE_FORK", // 3
91	"undefined", // 4
92	"undefined", // 5
93	"THREAD_USER_CREATE", // 6
94	"THREAD_KERNEL_CREATE", // 7
95	"undefined", // 8
96	"PROCESS_SIGACTION", // 9
97
98	"VFS_INODE_CREATE", // 10
99	"VFS_INODE_DESTROY", // 11
100	"VFS_DENTRY_CREATE", // 12
101	"VFS_DENTRY_DESTROY", // 13
102	"VFS_FILE_CREATE", // 14
103	"VFS_FILE_DESTROY", // 15
104	"VFS_INODE_LOAD", // 16
105	"VFS_MAPPER_LOAD_ALL", // 17
106	"FATFS_GET_CLUSTER", // 18
107	"undefined", // 19
108
109	"GET_VSEG", // 20
110	"GET_PTE", // 21
111	"KCM_ALLOC", // 22
112	"KCM_FREE", // 23
113	"MAPPER_MOVE_BUFFER", // 24
114	"MAPPER_GET_PAGE", // 25
115	"VMM_CREATE_VSEG", // 26
116	"undefined", // 27
117	"VMM_SET_COW", // 28
118	"VMM_DISPLAY", // 29
119	};
120
121	//////////////////////////////////////////////////////////////////////////////////
122	void __attribute__((noinline)) rpc_undefined( xptr_t xp __attribute__ ((unused)) )
123	{
124	assert( false , "called in cluster %x", local_cxy );
125	}
126
127	/***************************************************************************************/
128	/********** Generic functions supporting RPCs : client side ************************/
129	/***************************************************************************************/
130
131	///////////////////////////////////////
132	void rpc_send( cxy_t server_cxy,
133	rpc_desc_t * rpc )
134	{
135	lid_t server_core_lid;
136	lid_t client_core_lid;
137	volatile error_t full;
138	thread_t * this;
139
140	full = 0;
141	this = CURRENT_THREAD;
142	client_core_lid = this->core->lid;
143
144	// check calling thread can yield when it is not the idle thread
145	assert( (this->busylocks == 0) \|\| (this->type == THREAD_IDLE),
146	"cannot yield : busylocks = %d\n", this->busylocks );
147
148	#if DEBUG_RPC_CLIENT_GENERIC
149	uint32_t cycle = (uint32_t)hal_get_cycles();
150	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
151	printk("\n[DBG] %s : thread %x in process %x enter for rpc %s / server_cxy %x / cycle %d\n",
152	__FUNCTION__, this->trdid, this->process->pid, rpc_str[rpc->index], server_cxy, cycle );
153	#endif
154
155	// select a server_core : use client core index if possible / core 0 otherwise
156	if( client_core_lid < hal_remote_l32( XPTR( server_cxy , &LOCAL_CLUSTER->cores_nr ) ) )
157	{
158	server_core_lid = client_core_lid;
159	}
160	else
161	{
162	server_core_lid = 0;
163	}
164
165	// register client_thread pointer and client_core lid in RPC descriptor
166	rpc->thread = this;
167	rpc->lid = client_core_lid;
168
169	// build extended pointer on the RPC descriptor
170	xptr_t desc_xp = XPTR( local_cxy , rpc );
171
172	// get local pointer on rpc_fifo in remote cluster,
173	remote_fifo_t * rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[server_core_lid];
174	xptr_t rpc_fifo_xp = XPTR( server_cxy , rpc_fifo );
175
176	// post RPC in remote fifo / deschedule without blocking if fifo full
177	do
178	{
179	full = remote_fifo_put_item( rpc_fifo_xp , (uint64_t )desc_xp );
180
181	if ( full )
182	{
183	printk("\n[WARNING] %s : cluster %x cannot post RPC to cluster %x\n",
184	__FUNCTION__ , local_cxy , server_cxy );
185
186	// deschedule without blocking
187	sched_yield("RPC fifo full");
188	}
189	}
190	while( full );
191
192	hal_fence();
193
194	#if DEBUG_RPC_CLIENT_GENERIC
195	cycle = (uint32_t)hal_get_cycles();
196	uint32_t items = remote_fifo_items( rpc_fifo_xp );
197	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
198	printk("\n[DBG] %s : thread %x in process %x / rpc %s / items %d / cycle %d\n",
199	__FUNCTION__, this->trdid, this->process->pid, rpc_str[rpc->index], items, cycle );
200	#endif
201
202	// send IPI to the selected server core
203	dev_pic_send_ipi( server_cxy , server_core_lid );
204
205	// wait RPC completion before returning if blocking RPC :
206	// - descheduling without blocking if thread idle (in lernel init)
207	// - block and deschedule policy for any other thread
208	if ( rpc->blocking )
209	{
210	if( this->type == THREAD_IDLE ) // deschedule without blocking policy
211	{
212
213	#if DEBUG_RPC_CLIENT_GENERIC
214	cycle = (uint32_t)hal_get_cycles();
215	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
216	printk("\n[DBG] %s : thread %x in process %x enter waiting loop for rpc %s / cycle %d\n",
217	__FUNCTION__, this->trdid, this->process->pid, rpc_str[rpc->index], cycle );
218	#endif
219
220	while( rpc->responses ) sched_yield( "busy waiting on RPC");
221
222	#if DEBUG_RPC_CLIENT_GENERIC
223	cycle = (uint32_t)hal_get_cycles();
224	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
225	printk("\n[DBG] %s : thread %x in process %x received response for rpc %s / cycle %d\n",
226	__FUNCTION__, this->trdid, this->process->pid, rpc_str[rpc->index], cycle );
227	#endif
228
229	}
230	else // block and deschedule policy
231	{
232
233	#if DEBUG_RPC_CLIENT_GENERIC
234	cycle = (uint32_t)hal_get_cycles();
235	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
236	printk("\n[DBG] %s : thread %x in process %x blocks & deschedules for rpc %s / cycle %d\n",
237	__FUNCTION__, this->trdid, this->process->pid, rpc_str[rpc->index], cycle );
238	#endif
239
240	// block client thread
241	thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_RPC );
242
243	// deschedule
244	sched_yield("blocked on RPC");
245
246	#if DEBUG_RPC_CLIENT_GENERIC
247	cycle = (uint32_t)hal_get_cycles();
248	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
249	printk("\n[DBG] %s : thread %x in process %x resumes for rpc %s / cycle %d\n",
250	__FUNCTION__, this->trdid, this->process->pid, rpc_str[rpc->index], cycle );
251	#endif
252	}
253
254	// response must be available for a blocking RPC
255	assert( (rpc->responses == 0) , "illegal response for RPC %s\n", rpc_str[rpc->index] );
256
257	}
258	else // non blocking RPC
259	{
260
261	#if DEBUG_RPC_CLIENT_GENERIC
262	cycle = (uint32_t)hal_get_cycles();
263	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
264	printk("\n[DBG] %s : thread %x in process %x returns for non blocking rpc %s / cycle %d\n",
265	__FUNCTION__, this->trdid, this->process->pid, rpc_str[rpc->index], cycle );
266	#endif
267
268	}
269	} // end rpc_send()
270
271
272	/***************************************************************************************/
273	/********** Generic functions supporting RPCs : server side ************************/
274	/***************************************************************************************/
275
276	////////////////////////////
277	void rpc_thread_func( void )
278	{
279	error_t empty; // local RPC fifo state
280	xptr_t desc_xp; // extended pointer on RPC request
281	cxy_t desc_cxy; // RPC request cluster (client)
282	rpc_desc_t * desc_ptr; // RPC request local pointer
283	uint32_t index; // RPC request index
284	thread_t * client_ptr; // local pointer on client thread
285	thread_t * server_ptr; // local pointer on server thread
286	xptr_t server_xp; // extended pointer on server thread
287	lid_t client_core_lid; // local index of client core
288	lid_t server_core_lid; // local index of server core
289	bool_t blocking; // blocking RPC when true
290	remote_fifo_t * rpc_fifo; // local pointer on RPC fifo
291
292	// makes RPC thread not preemptable
293	hal_disable_irq( NULL );
294
295	server_ptr = CURRENT_THREAD;
296	server_xp = XPTR( local_cxy , server_ptr );
297	server_core_lid = server_ptr->core->lid;
298	rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[server_core_lid];
299
300	// "infinite" RPC thread loop
301	while(1)
302	{
303	// try to take RPC_FIFO ownership
304	if( hal_atomic_test_set( &rpc_fifo->owner , server_ptr->trdid ) )
305	{
306
307	#if DEBUG_RPC_SERVER_GENERIC
308	uint32_t cycle = (uint32_t)hal_get_cycles();
309	if( DEBUG_RPC_SERVER_GENERIC < cycle )
310	printk("\n[DBG] %s : RPC thread %x on core[%d] takes RPC_FIFO ownership / cycle %d\n",
311	__FUNCTION__, server_ptr->trdid, server_core_lid, cycle );
312	#endif
313	// try to consume one RPC request
314	empty = remote_fifo_get_item( rpc_fifo , (uint64_t *)&desc_xp );
315
316	// release RPC_FIFO ownership
317	rpc_fifo->owner = 0;
318
319	// handle RPC request if success
320	if ( empty == 0 )
321	{
322	// get client cluster and pointer on RPC descriptor
323	desc_cxy = GET_CXY( desc_xp );
324	desc_ptr = GET_PTR( desc_xp );
325
326	index = hal_remote_l32( XPTR( desc_cxy , &desc_ptr->index ) );
327	blocking = hal_remote_l32( XPTR( desc_cxy , &desc_ptr->blocking ) );
328
329	#if DEBUG_RPC_SERVER_GENERIC
330	cycle = (uint32_t)hal_get_cycles();
331	uint32_t items = remote_fifo_items( XPTR( local_cxy , rpc_fifo ) );
332	if( DEBUG_RPC_SERVER_GENERIC < cycle )
333	printk("\n[DBG] %s : RPC thread %x got rpc %s / client_cxy %x / items %d / cycle %d\n",
334	__FUNCTION__, server_ptr->trdid, rpc_str[index], desc_cxy, items, cycle );
335	#endif
336	// call the relevant server function
337	rpc_server[index]( desc_xp );
338
339	#if DEBUG_RPC_SERVER_GENERIC
340	cycle = (uint32_t)hal_get_cycles();
341	if( DEBUG_RPC_SERVER_GENERIC < cycle )
342	printk("\n[DBG] %s : RPC thread %x completes rpc %s / client_cxy %x / cycle %d\n",
343	__FUNCTION__, server_ptr->trdid, rpc_str[index], desc_cxy, cycle );
344	#endif
345	// decrement response counter in RPC descriptor if blocking RPC
346	if( blocking )
347	{
348	// decrement responses counter in RPC descriptor
349	hal_remote_atomic_add( XPTR( desc_cxy, &desc_ptr->responses ), -1 );
350
351	// get client thread pointer and client core lid from RPC descriptor
352	client_ptr = hal_remote_lpt( XPTR( desc_cxy , &desc_ptr->thread ) );
353	client_core_lid = hal_remote_l32 ( XPTR( desc_cxy , &desc_ptr->lid ) );
354
355	// unblock client thread
356	thread_unblock( XPTR( desc_cxy , client_ptr ) , THREAD_BLOCKED_RPC );
357
358	hal_fence();
359
360	#if DEBUG_RPC_SERVER_GENERIC
361	cycle = (uint32_t)hal_get_cycles();
362	if( DEBUG_RPC_SERVER_GENERIC < cycle )
363	printk("\n[DBG] %s : RPC thread %x unblocked client thread %x / cycle %d\n",
364	__FUNCTION__, server_ptr->trdid, client_ptr->trdid, cycle );
365	#endif
366	// send IPI to client core
367	dev_pic_send_ipi( desc_cxy , client_core_lid );
368
369	} // end if blocking RPC
370	} // end RPC handling if fifo non empty
371	} // end if RPC_fIFO ownership successfully taken and released
372
373	// sucide if too many RPC threads
374	if( LOCAL_CLUSTER->rpc_threads[server_core_lid] >= CONFIG_RPC_THREADS_MAX )
375	{
376
377	#if DEBUG_RPC_SERVER_GENERIC
378	uint32_t cycle = (uint32_t)hal_get_cycles();
379	if( DEBUG_RPC_SERVER_GENERIC < cycle )
380	printk("\n[DBG] %s : RPC thread %x suicides / cycle %d\n",
381	__FUNCTION__, server_ptr->trdid, cycle );
382	#endif
383	// update RPC threads counter
384	hal_atomic_add( &LOCAL_CLUSTER->rpc_threads[server_core_lid] , -1 );
385
386	// RPC thread blocks on GLOBAL
387	thread_block( server_xp , THREAD_BLOCKED_GLOBAL );
388
389	// RPC thread set the REQ_DELETE flag to suicide
390	hal_remote_atomic_or( server_xp , THREAD_FLAG_REQ_DELETE );
391	}
392	// block and deschedule otherwise
393	else
394	{
395
396	#if DEBUG_RPC_SERVER_GENERIC
397	uint32_t cycle = (uint32_t)hal_get_cycles();
398	if( DEBUG_RPC_SERVER_GENERIC < cycle )
399	printk("\n[DBG] %s : RPC thread %x block IDLE & deschedules / cycle %d\n",
400	__FUNCTION__, server_ptr->trdid, cycle );
401	#endif
402	// RPC thread blocks on IDLE
403	thread_block( server_xp , THREAD_BLOCKED_IDLE );
404
405	// RPC thread deschedules
406	sched_yield("RPC_FIFO empty");
407	}
408	} // end infinite loop
409	} // end rpc_thread_func()
410
411
412	/////////////////////////////////////////////////////////////////////////////////////////
413	// [0] Marshaling functions attached to RPC_PMEM_GET_PAGES (blocking)
414	/////////////////////////////////////////////////////////////////////////////////////////
415
416	///////////////////////////////////////////////
417	void rpc_pmem_get_pages_client( cxy_t cxy,
418	uint32_t order, // in
419	page_t ** page ) // out
420	{
421	#if DEBUG_RPC_PMEM_GET_PAGES
422	thread_t * this = CURRENT_THREAD;
423	uint32_t cycle = (uint32_t)hal_get_cycles();
424	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
425	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
426	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
427	#endif
428
429	assert( (cxy != local_cxy) , "target cluster is not remote\n");
430
431	// initialise RPC descriptor header
432	rpc_desc_t rpc;
433	rpc.index = RPC_PMEM_GET_PAGES;
434	rpc.blocking = true;
435	rpc.responses = 1;
436
437	// set input arguments in RPC descriptor
438	rpc.args[0] = (uint64_t)order;
439
440	// register RPC request in remote RPC fifo
441	rpc_send( cxy , &rpc );
442
443	// get output arguments from RPC descriptor
444	page = (page_t )(intptr_t)rpc.args[1];
445
446	#if DEBUG_RPC_PMEM_GET_PAGES
447	cycle = (uint32_t)hal_get_cycles();
448	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
449	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
450	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
451	#endif
452	}
453
454	///////////////////////////////////////////
455	void rpc_pmem_get_pages_server( xptr_t xp )
456	{
457	#if DEBUG_RPC_PMEM_GET_PAGES
458	thread_t * this = CURRENT_THREAD;
459	uint32_t cycle = (uint32_t)hal_get_cycles();
460	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
461	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
462	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
463	#endif
464
465	// get client cluster identifier and pointer on RPC descriptor
466	cxy_t cxy = GET_CXY( xp );
467	rpc_desc_t * desc = GET_PTR( xp );
468
469	// get input arguments from client RPC descriptor
470	uint32_t order = (uint32_t)hal_remote_l64( XPTR( cxy , &desc->args[0] ) );
471
472	// call local pmem allocator
473	page_t * page = ppm_alloc_pages( order );
474
475	// set output arguments into client RPC descriptor
476	hal_remote_s64( XPTR( cxy , &desc->args[1] ) , (uint64_t)(intptr_t)page );
477
478	#if DEBUG_RPC_PMEM_GET_PAGES
479	cycle = (uint32_t)hal_get_cycles();
480	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
481	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
482	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
483	#endif
484	}
485
486	/////////////////////////////////////////////////////////////////////////////////////////
487	// [1] Marshaling functions attached to RPC_PMEM_RELEASE_PAGES (blocking)
488	/////////////////////////////////////////////////////////////////////////////////////////
489
490	//////////////////////////////////////////////////
491	void rpc_pmem_release_pages_client( cxy_t cxy,
492	page_t * page ) // out
493	{
494	#if DEBUG_RPC_PMEM_RELEASE_PAGES
495	thread_t * this = CURRENT_THREAD;
496	uint32_t cycle = (uint32_t)hal_get_cycles();
497	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
498	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
499	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
500	#endif
501
502	assert( (cxy != local_cxy) , "target cluster is not remote\n");
503
504	// initialise RPC descriptor header
505	rpc_desc_t rpc;
506	rpc.index = RPC_PMEM_RELEASE_PAGES;
507	rpc.blocking = true;
508	rpc.responses = 1;
509
510	// set input arguments in RPC descriptor
511	rpc.args[0] = (uint64_t)(intptr_t)page;
512
513	// register RPC request in remote RPC fifo
514	rpc_send( cxy , &rpc );
515
516	#if DEBUG_RPC_PMEM_RELEASE_PAGES
517	cycle = (uint32_t)hal_get_cycles();
518	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
519	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
520	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
521	#endif
522	}
523
524	///////////////////////////////////////////////
525	void rpc_pmem_release_pages_server( xptr_t xp )
526	{
527	#if DEBUG_RPC_PMEM_RELEASE_PAGES
528	thread_t * this = CURRENT_THREAD;
529	uint32_t cycle = (uint32_t)hal_get_cycles();
530	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
531	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
532	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
533	#endif
534
535	// get client cluster identifier and pointer on RPC descriptor
536	cxy_t cxy = GET_CXY( xp );
537	rpc_desc_t * desc = GET_PTR( xp );
538
539	// get input arguments from client RPC descriptor
540	page_t * page = (page_t *)(intptr_t)hal_remote_l64( XPTR( cxy , &desc->args[0] ) );
541
542	// release memory to local pmem
543	kmem_req_t req;
544	req.type = KMEM_PAGE;
545	req.ptr = page;
546	kmem_free( &req );
547
548	#if DEBUG_RPC_PMEM_RELEASE_PAGES
549	cycle = (uint32_t)hal_get_cycles();
550	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
551	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
552	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
553	#endif
554	}
555
556	/////////////////////////////////////////////////////////////////////////////////////////
557	// [2] undefined slot
558	/////////////////////////////////////////////////////////////////////////////////////////
559
560	/////////////////////////////////////////////////////////////////////////////////////////
561	// [3] Marshaling functions attached to RPC_PROCESS_MAKE_FORK (blocking)
562	/////////////////////////////////////////////////////////////////////////////////////////
563
564	///////////////////////////////////////////////////
565	void rpc_process_make_fork_client( cxy_t cxy,
566	xptr_t ref_process_xp, // in
567	xptr_t parent_thread_xp, // in
568	pid_t * child_pid, // out
569	thread_t ** child_thread_ptr, // out
570	error_t * error ) // out
571	{
572	#if DEBUG_RPC_PROCESS_MAKE_FORK
573	thread_t * this = CURRENT_THREAD;
574	uint32_t cycle = (uint32_t)hal_get_cycles();
575	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
576	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
577	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
578	#endif
579
580	assert( (cxy != local_cxy) , "target cluster is not remote\n");
581
582	// initialise RPC descriptor header
583	rpc_desc_t rpc;
584	rpc.index = RPC_PROCESS_MAKE_FORK;
585	rpc.blocking = true;
586	rpc.responses = 1;
587
588	// set input arguments in RPC descriptor
589	rpc.args[0] = (uint64_t)ref_process_xp;
590	rpc.args[1] = (uint64_t)parent_thread_xp;
591
592	// register RPC request in remote RPC fifo
593	rpc_send( cxy , &rpc );
594
595	// get output arguments from RPC descriptor
596	*child_pid = (pid_t)rpc.args[2];
597	child_thread_ptr = (thread_t )(intptr_t)rpc.args[3];
598	*error = (error_t)rpc.args[4];
599
600	#if DEBUG_RPC_PROCESS_MAKE_FORK
601	cycle = (uint32_t)hal_get_cycles();
602	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
603	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
604	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
605	#endif
606	}
607
608	//////////////////////////////////////////////
609	void rpc_process_make_fork_server( xptr_t xp )
610	{
611	#if DEBUG_RPC_PROCESS_MAKE_FORK
612	thread_t * this = CURRENT_THREAD;
613	uint32_t cycle = (uint32_t)hal_get_cycles();
614	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
615	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
616	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
617	#endif
618
619	xptr_t ref_process_xp; // extended pointer on reference parent process
620	xptr_t parent_thread_xp; // extended pointer on parent thread
621	pid_t child_pid; // child process identifier
622	thread_t * child_thread_ptr; // local copy of exec_info structure
623	error_t error; // local error status
624
625	// get client cluster identifier and pointer on RPC descriptor
626	cxy_t client_cxy = GET_CXY( xp );
627	rpc_desc_t * desc = GET_PTR( xp );
628
629	// get input arguments from cient RPC descriptor
630	ref_process_xp = (xptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
631	parent_thread_xp = (xptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
632
633	// call local kernel function
634	error = process_make_fork( ref_process_xp,
635	parent_thread_xp,
636	&child_pid,
637	&child_thread_ptr );
638
639	// set output argument into client RPC descriptor
640	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)child_pid );
641	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)(intptr_t)child_thread_ptr );
642	hal_remote_s64( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
643
644	#if DEBUG_RPC_PROCESS_MAKE_FORK
645	cycle = (uint32_t)hal_get_cycles();
646	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
647	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
648	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
649	#endif
650	}
651
652	/////////////////////////////////////////////////////////////////////////////////////////
653	// [4] undefined slot
654	/////////////////////////////////////////////////////////////////////////////////////////
655
656	/////////////////////////////////////////////////////////////////////////////////////////
657	// [5] undefined slot
658	/////////////////////////////////////////////////////////////////////////////////////////
659
660	/////////////////////////////////////////////////////////////////////////////////////////
661	// [6] Marshaling functions attached to RPC_THREAD_USER_CREATE (blocking)
662	/////////////////////////////////////////////////////////////////////////////////////////
663
664	/////////////////////////////////////////////////////////
665	void rpc_thread_user_create_client( cxy_t cxy,
666	pid_t pid, // in
667	void * start_func, // in
668	void * start_arg, // in
669	pthread_attr_t * attr, // in
670	xptr_t * thread_xp, // out
671	error_t * error ) // out
672	{
673	#if DEBUG_RPC_THREAD_USER_CREATE
674	thread_t * this = CURRENT_THREAD;
675	uint32_t cycle = (uint32_t)hal_get_cycles();
676	if( cycle > DEBUG_RPC_THREAD_USER_CREATE)
677	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
678	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
679	#endif
680
681	assert( (cxy != local_cxy) , "target cluster is not remote\n");
682
683	// initialise RPC descriptor header
684	rpc_desc_t rpc;
685	rpc.index = RPC_THREAD_USER_CREATE;
686	rpc.blocking = true;
687	rpc.responses = 1;
688
689	// set input arguments in RPC descriptor
690	rpc.args[0] = (uint64_t)pid;
691	rpc.args[1] = (uint64_t)(intptr_t)start_func;
692	rpc.args[2] = (uint64_t)(intptr_t)start_arg;
693	rpc.args[3] = (uint64_t)(intptr_t)attr;
694
695	// register RPC request in remote RPC fifo
696	rpc_send( cxy , &rpc );
697
698	// get output arguments from RPC descriptor
699	*thread_xp = (xptr_t)rpc.args[4];
700	*error = (error_t)rpc.args[5];
701
702	#if DEBUG_RPC_THREAD_USER_CREATE
703	cycle = (uint32_t)hal_get_cycles();
704	if( cycle > DEBUG_RPC_THREAD_USER_CREATE)
705	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
706	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
707	#endif
708	}
709
710	///////////////////////////////////////////////
711	void rpc_thread_user_create_server( xptr_t xp )
712	{
713	#if DEBUG_RPC_THREAD_USER_CREATE
714	thread_t * this = CURRENT_THREAD;
715	uint32_t cycle = (uint32_t)hal_get_cycles();
716	if( cycle > DEBUG_RPC_THREAD_USER_CREATE)
717	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
718	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
719	#endif
720
721	pthread_attr_t * attr_ptr; // pointer on attributes structure in client cluster
722	pthread_attr_t attr_copy; // attributes structure copy in server cluster
723	thread_t * thread_ptr; // local pointer on thread descriptor
724	xptr_t thread_xp; // extended pointer on thread descriptor
725
726	pid_t pid; // process identifier
727	void * start_func;
728	void * start_arg;
729	error_t error;
730
731	// get client cluster identifier and pointer on RPC descriptor
732	cxy_t client_cxy = GET_CXY( xp );
733	rpc_desc_t * desc = GET_PTR( xp );
734
735	// get pointer on attributes structure in client cluster from RPC descriptor
736
737	// get input arguments from RPC descriptor
738	pid = (pid_t) hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
739	start_func = (void *)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
740	start_arg = (void *)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[2]));
741	attr_ptr = (pthread_attr_t *)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[3]));
742
743	// makes a local copy of attributes structure
744	hal_remote_memcpy( XPTR( local_cxy , &attr_copy ),
745	XPTR( client_cxy , attr_ptr ),
746	sizeof(pthread_attr_t) );
747
748	// call kernel function
749	error = thread_user_create( pid,
750	start_func,
751	start_arg,
752	&attr_copy,
753	&thread_ptr );
754
755	// set output arguments
756	thread_xp = XPTR( local_cxy , thread_ptr );
757	hal_remote_s64( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)thread_xp );
758	hal_remote_s64( XPTR( client_cxy , &desc->args[5] ) , (uint64_t)error );
759
760	#if DEBUG_RPC_THREAD_USER_CREATE
761	cycle = (uint32_t)hal_get_cycles();
762	if( cycle > DEBUG_RPC_THREAD_USER_CREATE)
763	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
764	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
765	#endif
766	}
767
768	/////////////////////////////////////////////////////////////////////////////////////////
769	// [7] Marshaling functions attached to RPC_THREAD_KERNEL_CREATE (blocking)
770	/////////////////////////////////////////////////////////////////////////////////////////
771
772	////////////////////////////////////////////////////
773	void rpc_thread_kernel_create_client( cxy_t cxy,
774	uint32_t type, // in
775	void * func, // in
776	void * args, // in
777	xptr_t * thread_xp, // out
778	error_t * error ) // out
779	{
780	#if DEBUG_RPC_THREAD_KERNEL_CREATE
781	thread_t * this = CURRENT_THREAD;
782	uint32_t cycle = (uint32_t)hal_get_cycles();
783	if( cycle > DEBUG_RPC_THREAD_KERNEL_CREATE)
784	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
785	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
786	#endif
787
788	assert( (cxy != local_cxy) , "target cluster is not remote\n");
789
790	// initialise RPC descriptor header
791	rpc_desc_t rpc;
792	rpc.index = RPC_THREAD_KERNEL_CREATE;
793	rpc.blocking = true;
794	rpc.responses = 1;
795
796	// set input arguments in RPC descriptor
797	rpc.args[0] = (uint64_t)type;
798	rpc.args[1] = (uint64_t)(intptr_t)func;
799	rpc.args[2] = (uint64_t)(intptr_t)args;
800
801	// register RPC request in remote RPC fifo
802	rpc_send( cxy , &rpc );
803
804	// get output arguments from RPC descriptor
805	*thread_xp = (xptr_t)rpc.args[3];
806	*error = (error_t)rpc.args[4];
807
808	#if DEBUG_RPC_THREAD_KERNEL_CREATE
809	cycle = (uint32_t)hal_get_cycles();
810	if( cycle > DEBUG_RPC_THREAD_KERNEL_CREATE)
811	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
812	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
813	#endif
814	}
815
816	/////////////////////////////////////////////////
817	void rpc_thread_kernel_create_server( xptr_t xp )
818	{
819	#if DEBUG_RPC_THREAD_KERNEL_CREATE
820	thread_t * this = CURRENT_THREAD;
821	uint32_t cycle = (uint32_t)hal_get_cycles();
822	if( cycle > DEBUG_RPC_THREAD_KERNEL_CREATE)
823	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
824	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
825	#endif
826
827	thread_t * thread_ptr; // local pointer on thread descriptor
828	xptr_t thread_xp; // extended pointer on thread descriptor
829	lid_t core_lid; // core local index
830	error_t error;
831
832	// get client cluster identifier and pointer on RPC descriptor
833	cxy_t client_cxy = GET_CXY( xp );
834	rpc_desc_t * desc = GET_PTR( xp );
835
836	// get attributes from RPC descriptor
837	uint32_t type = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
838	void * func = (void*)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
839	void * args = (void*)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[2] ) );
840
841	// select one core
842	core_lid = cluster_select_local_core();
843
844	// call local kernel function
845	error = thread_kernel_create( &thread_ptr , type , func , args , core_lid );
846
847	// set output arguments
848	thread_xp = XPTR( local_cxy , thread_ptr );
849	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
850	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)thread_xp );
851
852	#if DEBUG_RPC_THREAD_KERNEL_CREATE
853	cycle = (uint32_t)hal_get_cycles();
854	if( cycle > DEBUG_RPC_THREAD_KERNEL_CREATE)
855	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
856	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
857	#endif
858	}
859
860	/////////////////////////////////////////////////////////////////////////////////////////
861	// [8] undefined slot
862	/////////////////////////////////////////////////////////////////////////////////////////
863
864
865	/////////////////////////////////////////////////////////////////////////////////////////
866	// [9] Marshaling functions attached to RPC_PROCESS_SIGACTION (multicast / non blocking)
867	/////////////////////////////////////////////////////////////////////////////////////////
868
869	////////////////////////////////////////////////////
870	void rpc_process_sigaction_client( cxy_t cxy,
871	rpc_desc_t * rpc )
872	{
873
874	#if DEBUG_RPC_PROCESS_SIGACTION
875	uint32_t cycle = (uint32_t)hal_get_cycles();
876	uint32_t action = rpc->args[0];
877	pid_t pid = rpc->args[1];
878	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
879	printk("\n[DBG] %s : enter to request %s of process %x in cluster %x / cycle %d\n",
880	__FUNCTION__ , process_action_str( action ) , pid , cxy , cycle );
881	#endif
882
883	// check some RPC arguments
884	assert( (rpc->blocking == false) , "must be non-blocking\n");
885	assert( (rpc->index == RPC_PROCESS_SIGACTION ) , "bad RPC index\n" );
886
887	// register RPC request in remote RPC fifo and return
888	rpc_send( cxy , rpc );
889
890	#if DEBUG_RPC_PROCESS_SIGACTION
891	cycle = (uint32_t)hal_get_cycles();
892	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
893	printk("\n[DBG] %s : exit after requesting to %s process %x in cluster %x / cycle %d\n",
894	__FUNCTION__ , process_action_str( action ) , pid , cxy , cycle );
895	#endif
896
897	} // end rpc_process_sigaction_client()
898
899	//////////////////////////////////////////////
900	void rpc_process_sigaction_server( xptr_t xp )
901	{
902	pid_t pid; // target process identifier
903	process_t * process; // pointer on local target process descriptor
904	uint32_t action; // sigaction index
905	thread_t * client_ptr; // pointer on client thread in client cluster
906	xptr_t client_xp; // extended pointer client thread
907	cxy_t client_cxy; // client cluster identifier
908	rpc_desc_t * rpc; // pointer on rpc descriptor in client cluster
909	xptr_t count_xp; // extended pointer on responses counter
910	uint32_t count_value; // responses counter value
911	lid_t client_lid; // client core local index
912
913	// get client cluster identifier and pointer on RPC descriptor
914	client_cxy = GET_CXY( xp );
915	rpc = GET_PTR( xp );
916
917	// get arguments from RPC descriptor
918	action = (uint32_t)hal_remote_l64( XPTR(client_cxy , &rpc->args[0]) );
919	pid = (pid_t) hal_remote_l64( XPTR(client_cxy , &rpc->args[1]) );
920
921	#if DEBUG_RPC_PROCESS_SIGACTION
922	uint32_t cycle = (uint32_t)hal_get_cycles();
923	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
924	printk("\n[DBG] %s : enter to %s process %x in cluster %x / cycle %d\n",
925	__FUNCTION__ , process_action_str( action ) , pid , local_cxy , cycle );
926	#endif
927
928	// get client thread pointers
929	client_ptr = (thread_t *)hal_remote_lpt( XPTR( client_cxy , &rpc->thread ) );
930	client_xp = XPTR( client_cxy , client_ptr );
931
932	// get local process descriptor
933	process = cluster_get_local_process_from_pid( pid );
934
935	// call relevant kernel function
936	if ( action == DELETE_ALL_THREADS ) process_delete_threads ( process , client_xp );
937	else if ( action == BLOCK_ALL_THREADS ) process_block_threads ( process , client_xp );
938	else if ( action == UNBLOCK_ALL_THREADS ) process_unblock_threads( process );
939
940	// build extended pointer on response counter in RPC
941	count_xp = XPTR( client_cxy , &rpc->responses );
942
943	// decrement the responses counter in RPC descriptor,
944	count_value = hal_remote_atomic_add( count_xp , -1 );
945
946	// unblock the client thread only if it is the last response.
947	if( count_value == 1 )
948	{
949	// get client core lid
950	client_lid = (lid_t) hal_remote_l32 ( XPTR( client_cxy , &rpc->lid ) );
951
952	// unblock client thread
953	thread_unblock( client_xp , THREAD_BLOCKED_RPC );
954
955	// send an IPI to client core
956	// dev_pic_send_ipi( client_cxy , client_lid );
957	}
958
959	#if DEBUG_RPC_PROCESS_SIGACTION
960	cycle = (uint32_t)hal_get_cycles();
961	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
962	printk("\n[DBG] %s : exit after %s process %x in cluster %x / cycle %d\n",
963	__FUNCTION__ , process_action_str( action ) , pid , local_cxy , cycle );
964	#endif
965
966	} // end rpc_process_sigaction_server()
967
968	/////////////////////////////////////////////////////////////////////////////////////////
969	// [10] Marshaling functions attached to RPC_VFS_INODE_CREATE (blocking)
970	/////////////////////////////////////////////////////////////////////////////////////////
971
972	/////////////////////////////////////////////////////
973	void rpc_vfs_inode_create_client( cxy_t cxy,
974	xptr_t dentry_xp, // in
975	uint32_t fs_type, // in
976	uint32_t inode_type, // in
977	void * extend, // in
978	uint32_t attr, // in
979	uint32_t rights, // in
980	uint32_t uid, // in
981	uint32_t gid, // in
982	xptr_t * inode_xp, // out
983	error_t * error ) // out
984	{
985	#if DEBUG_RPC_VFS_INODE_CREATE
986	thread_t * this = CURRENT_THREAD;
987	uint32_t cycle = (uint32_t)hal_get_cycles();
988	if( cycle > DEBUG_RPC_VFS_INODE_CREATE )
989	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
990	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
991	#endif
992
993	assert( (cxy != local_cxy) , "target cluster is not remote\n");
994
995	// initialise RPC descriptor header
996	rpc_desc_t rpc;
997	rpc.index = RPC_VFS_INODE_CREATE;
998	rpc.blocking = true;
999	rpc.responses = 1;
1000
1001	// set input arguments in RPC descriptor
1002	rpc.args[0] = (uint64_t)dentry_xp;
1003	rpc.args[1] = (uint64_t)fs_type;
1004	rpc.args[2] = (uint64_t)inode_type;
1005	rpc.args[3] = (uint64_t)(intptr_t)extend;
1006	rpc.args[4] = (uint64_t)attr;
1007	rpc.args[5] = (uint64_t)rights;
1008	rpc.args[6] = (uint64_t)uid;
1009	rpc.args[7] = (uint64_t)gid;
1010
1011	// register RPC request in remote RPC fifo
1012	rpc_send( cxy , &rpc );
1013
1014	// get output values from RPC descriptor
1015	*inode_xp = (xptr_t)rpc.args[8];
1016	*error = (error_t)rpc.args[9];
1017
1018	#if DEBUG_RPC_VFS_INODE_CREATE
1019	cycle = (uint32_t)hal_get_cycles();
1020	if( cycle > DEBUG_RPC_VFS_INODE_CREATE )
1021	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1022	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1023	#endif
1024	}
1025
1026	/////////////////////////////////////////////
1027	void rpc_vfs_inode_create_server( xptr_t xp )
1028	{
1029	#if DEBUG_RPC_VFS_INODE_CREATE
1030	thread_t * this = CURRENT_THREAD;
1031	uint32_t cycle = (uint32_t)hal_get_cycles();
1032	if( cycle > DEBUG_RPC_VFS_INODE_CREATE )
1033	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1034	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1035	#endif
1036
1037	xptr_t dentry_xp;
1038	uint32_t fs_type;
1039	uint32_t inode_type;
1040	void * extend;
1041	uint32_t attr;
1042	uint32_t rights;
1043	uint32_t uid;
1044	uint32_t gid;
1045	xptr_t inode_xp;
1046	error_t error;
1047
1048	// get client cluster identifier and pointer on RPC descriptor
1049	cxy_t client_cxy = GET_CXY( xp );
1050	rpc_desc_t * desc = GET_PTR( xp );
1051
1052	// get input arguments from client rpc descriptor
1053	dentry_xp = (xptr_t) hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1054	fs_type = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1055	inode_type = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[2] ) );
1056	extend = (void *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[3] ) );
1057	attr = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[4] ) );
1058	rights = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[5] ) );
1059	uid = (uid_t) hal_remote_l64( XPTR( client_cxy , &desc->args[6] ) );
1060	gid = (gid_t) hal_remote_l64( XPTR( client_cxy , &desc->args[7] ) );
1061
1062	// call local kernel function
1063	error = vfs_inode_create( dentry_xp,
1064	fs_type,
1065	inode_type,
1066	extend,
1067	attr,
1068	rights,
1069	uid,
1070	gid,
1071	&inode_xp );
1072
1073	// set output arguments
1074	hal_remote_s64( XPTR( client_cxy , &desc->args[8] ) , (uint64_t)inode_xp );
1075	hal_remote_s64( XPTR( client_cxy , &desc->args[9] ) , (uint64_t)error );
1076
1077	#if DEBUG_RPC_VFS_INODE_CREATE
1078	cycle = (uint32_t)hal_get_cycles();
1079	if( cycle > DEBUG_RPC_VFS_INODE_CREATE )
1080	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1081	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1082	#endif
1083	}
1084
1085	/////////////////////////////////////////////////////////////////////////////////////////
1086	// [11] Marshaling functions attached to RPC_VFS_INODE_DESTROY (blocking)
1087	/////////////////////////////////////////////////////////////////////////////////////////
1088
1089	/////////////////////////////////////////////////////////////
1090	void rpc_vfs_inode_destroy_client( cxy_t cxy,
1091	struct vfs_inode_s * inode,
1092	error_t * error )
1093	{
1094	#if DEBUG_RPC_VFS_INODE_DESTROY
1095	thread_t * this = CURRENT_THREAD;
1096	uint32_t cycle = (uint32_t)hal_get_cycles();
1097	if( cycle > DEBUG_RPC_VFS_INODE_DESTROY )
1098	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1099	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1100	#endif
1101
1102	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1103
1104	// initialise RPC descriptor header
1105	rpc_desc_t rpc;
1106	rpc.index = RPC_VFS_INODE_DESTROY;
1107	rpc.blocking = true;
1108	rpc.responses = 1;
1109
1110	// set input arguments in RPC descriptor
1111	rpc.args[0] = (uint64_t)(intptr_t)inode;
1112
1113	// register RPC request in remote RPC fifo
1114	rpc_send( cxy , &rpc );
1115
1116	// get output argument from RPC descriptor
1117	*error = (error_t)rpc.args[1];
1118
1119	#if DEBUG_RPC_VFS_INODE_DESTROY
1120	cycle = (uint32_t)hal_get_cycles();
1121	if( cycle > DEBUG_RPC_VFS_INODE_DESTROY )
1122	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1123	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1124	#endif
1125	}
1126
1127	//////////////////////////////////////////////
1128	void rpc_vfs_inode_destroy_server( xptr_t xp )
1129	{
1130	#if DEBUG_RPC_VFS_INODE_DESTROY
1131	thread_t * this = CURRENT_THREAD;
1132	uint32_t cycle = (uint32_t)hal_get_cycles();
1133	if( cycle > DEBUG_RPC_VFS_INODE_DESTROY )
1134	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1135	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1136	#endif
1137
1138	vfs_inode_t * inode;
1139	error_t error;
1140
1141	// get client cluster identifier and pointer on RPC descriptor
1142	cxy_t client_cxy = GET_CXY( xp );
1143	rpc_desc_t * desc = GET_PTR( xp );
1144
1145	// get arguments "inode" from client RPC descriptor
1146	inode = (vfs_inode_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1147
1148	// call local kernel function
1149	error = vfs_inode_destroy( inode );
1150
1151	// set output argument
1152	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
1153
1154	#if DEBUG_RPC_VFS_INODE_DESTROY
1155	cycle = (uint32_t)hal_get_cycles();
1156	if( cycle > DEBUG_RPC_VFS_INODE_DESTROY )
1157	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1158	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1159	#endif
1160	}
1161
1162	/////////////////////////////////////////////////////////////////////////////////////////
1163	// [12] Marshaling functions attached to RPC_VFS_DENTRY_CREATE (blocking)
1164	/////////////////////////////////////////////////////////////////////////////////////////
1165
1166	//////////////////////////////////////////////////////////////
1167	void rpc_vfs_dentry_create_client( cxy_t cxy,
1168	uint32_t type, // in
1169	char * name, // in
1170	struct vfs_inode_s * parent, // in
1171	xptr_t * dentry_xp, // out
1172	error_t * error ) // out
1173	{
1174	#if DEBUG_RPC_VFS_DENTRY_CREATE
1175	thread_t * this = CURRENT_THREAD;
1176	uint32_t cycle = (uint32_t)hal_get_cycles();
1177	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1178	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1179	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1180	#endif
1181
1182	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1183
1184	// initialise RPC descriptor header
1185	rpc_desc_t rpc;
1186	rpc.index = RPC_VFS_DENTRY_CREATE;
1187	rpc.blocking = true;
1188	rpc.responses = 1;
1189
1190	// set input arguments in RPC descriptor
1191	rpc.args[0] = (uint64_t)type;
1192	rpc.args[1] = (uint64_t)(intptr_t)name;
1193	rpc.args[2] = (uint64_t)(intptr_t)parent;
1194
1195	// register RPC request in remote RPC fifo
1196	rpc_send( cxy , &rpc );
1197
1198	// get output values from RPC descriptor
1199	*dentry_xp = (xptr_t)rpc.args[3];
1200	*error = (error_t)rpc.args[4];
1201
1202	#if DEBUG_RPC_VFS_DENTRY_CREATE
1203	cycle = (uint32_t)hal_get_cycles();
1204	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1205	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1206	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1207	#endif
1208	}
1209
1210	//////////////////////////////////////////////
1211	void rpc_vfs_dentry_create_server( xptr_t xp )
1212	{
1213	#if DEBUG_RPC_VFS_DENTRY_CREATE
1214	thread_t * this = CURRENT_THREAD;
1215	uint32_t cycle = (uint32_t)hal_get_cycles();
1216	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1217	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1218	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1219	#endif
1220
1221	uint32_t type;
1222	char * name;
1223	vfs_inode_t * parent;
1224	xptr_t dentry_xp;
1225	error_t error;
1226	char name_copy[CONFIG_VFS_MAX_NAME_LENGTH];
1227
1228	// get client cluster identifier and pointer on RPC descriptor
1229	cxy_t client_cxy = GET_CXY( xp );
1230	rpc_desc_t * desc = GET_PTR( xp );
1231
1232	// get arguments "name", "type", and "parent" from client RPC descriptor
1233	type = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1234	name = (char *)(intptr_t) hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1235	parent = (vfs_inode_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[2] ) );
1236
1237	// makes a local copy of name
1238	hal_remote_strcpy( XPTR( local_cxy , name_copy ),
1239	XPTR( client_cxy , name ) );
1240
1241	// call local kernel function
1242	error = vfs_dentry_create( type,
1243	name_copy,
1244	parent,
1245	&dentry_xp );
1246	// set output arguments
1247	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)dentry_xp );
1248	hal_remote_s64( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
1249
1250	#if DEBUG_RPC_VFS_DENTRY_CREATE
1251	cycle = (uint32_t)hal_get_cycles();
1252	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1253	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1254	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1255	#endif
1256	}
1257
1258	/////////////////////////////////////////////////////////////////////////////////////////
1259	// [13] Marshaling functions attached to RPC_VFS_DENTRY_DESTROY (blocking)
1260	/////////////////////////////////////////////////////////////////////////////////////////
1261
1262	///////////////////////////////////////////////////////
1263	void rpc_vfs_dentry_destroy_client( cxy_t cxy,
1264	vfs_dentry_t * dentry,
1265	error_t * error )
1266	{
1267	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1268	thread_t * this = CURRENT_THREAD;
1269	uint32_t cycle = (uint32_t)hal_get_cycles();
1270	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1271	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1272	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1273	#endif
1274
1275	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1276
1277	// initialise RPC descriptor header
1278	rpc_desc_t rpc;
1279	rpc.index = RPC_VFS_DENTRY_DESTROY;
1280	rpc.blocking = true;
1281	rpc.responses = 1;
1282
1283	// set input arguments in RPC descriptor
1284	rpc.args[0] = (uint64_t)(intptr_t)dentry;
1285
1286	// register RPC request in remote RPC fifo
1287	rpc_send( cxy , &rpc );
1288
1289	// get output argument from RPC descriptor
1290	*error = (error_t)rpc.args[1];
1291
1292	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1293	cycle = (uint32_t)hal_get_cycles();
1294	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1295	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1296	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1297	#endif
1298	}
1299
1300	///////////////////////////////////////////////
1301	void rpc_vfs_dentry_destroy_server( xptr_t xp )
1302	{
1303	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1304	thread_t * this = CURRENT_THREAD;
1305	uint32_t cycle = (uint32_t)hal_get_cycles();
1306	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1307	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1308	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1309	#endif
1310
1311	vfs_dentry_t * dentry;
1312	error_t error;
1313
1314	// get client cluster identifier and pointer on RPC descriptor
1315	cxy_t client_cxy = GET_CXY( xp );
1316	rpc_desc_t * desc = GET_PTR( xp );
1317
1318	// get arguments "dentry" from client RPC descriptor
1319	dentry = (vfs_dentry_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1320
1321	// call local kernel function
1322	error = vfs_dentry_destroy( dentry );
1323
1324	// set output argument
1325	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
1326
1327	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1328	cycle = (uint32_t)hal_get_cycles();
1329	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1330	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1331	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1332	#endif
1333	}
1334
1335
1336	/////////////////////////////////////////////////////////////////////////////////////////
1337	// [14] Marshaling functions attached to RPC_VFS_FILE_CREATE (blocking)
1338	/////////////////////////////////////////////////////////////////////////////////////////
1339
1340	//////////////////////////////////////////////////////////////
1341	void rpc_vfs_file_create_client( cxy_t cxy,
1342	struct vfs_inode_s * inode, // in
1343	uint32_t file_attr, // in
1344	xptr_t * file_xp, // out
1345	error_t * error ) // out
1346	{
1347	#if DEBUG_RPC_VFS_FILE_CREATE
1348	thread_t * this = CURRENT_THREAD;
1349	uint32_t cycle = (uint32_t)hal_get_cycles();
1350	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1351	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1352	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1353	#endif
1354
1355	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1356
1357	// initialise RPC descriptor header
1358	rpc_desc_t rpc;
1359	rpc.index = RPC_VFS_FILE_CREATE;
1360	rpc.blocking = true;
1361	rpc.responses = 1;
1362
1363	// set input arguments in RPC descriptor
1364	rpc.args[0] = (uint64_t)(intptr_t)inode;
1365	rpc.args[1] = (uint64_t)file_attr;
1366
1367	// register RPC request in remote RPC fifo
1368	rpc_send( cxy , &rpc );
1369
1370	// get output values from RPC descriptor
1371	*file_xp = (xptr_t)rpc.args[2];
1372	*error = (error_t)rpc.args[3];
1373
1374	#if DEBUG_RPC_VFS_FILE_CREATE
1375	cycle = (uint32_t)hal_get_cycles();
1376	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1377	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1378	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1379	#endif
1380	}
1381
1382	////////////////////////////////////////////
1383	void rpc_vfs_file_create_server( xptr_t xp )
1384	{
1385	#if DEBUG_RPC_VFS_FILE_CREATE
1386	thread_t * this = CURRENT_THREAD;
1387	uint32_t cycle = (uint32_t)hal_get_cycles();
1388	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1389	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1390	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1391	#endif
1392
1393	uint32_t file_attr;
1394	vfs_inode_t * inode;
1395	xptr_t file_xp;
1396	error_t error;
1397
1398	// get client cluster identifier and pointer on RPC descriptor
1399	cxy_t client_cxy = GET_CXY( xp );
1400	rpc_desc_t * desc = GET_PTR( xp );
1401
1402	// get arguments "file_attr" and "inode" from client RPC descriptor
1403	inode = (vfs_inode_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1404	file_attr = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1405
1406	// call local kernel function
1407	error = vfs_file_create( inode,
1408	file_attr,
1409	&file_xp );
1410
1411	// set output arguments
1412	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)file_xp );
1413	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
1414
1415	#if DEBUG_RPC_VFS_FILE_CREATE
1416	cycle = (uint32_t)hal_get_cycles();
1417	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1418	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1419	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1420	#endif
1421	}
1422
1423	/////////////////////////////////////////////////////////////////////////////////////////
1424	// [15] Marshaling functions attached to RPC_VFS_FILE_DESTROY (blocking)
1425	/////////////////////////////////////////////////////////////////////////////////////////
1426
1427	///////////////////////////////////////////////////
1428	void rpc_vfs_file_destroy_client( cxy_t cxy,
1429	vfs_file_t * file )
1430	{
1431	#if DEBUG_RPC_VFS_FILE_DESTROY
1432	thread_t * this = CURRENT_THREAD;
1433	uint32_t cycle = (uint32_t)hal_get_cycles();
1434	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1435	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1436	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1437	#endif
1438
1439	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1440
1441	// initialise RPC descriptor header
1442	rpc_desc_t rpc;
1443	rpc.index = RPC_VFS_FILE_DESTROY;
1444	rpc.blocking = true;
1445	rpc.responses = 1;
1446
1447	// set input arguments in RPC descriptor
1448	rpc.args[0] = (uint64_t)(intptr_t)file;
1449
1450	// register RPC request in remote RPC fifo
1451	rpc_send( cxy , &rpc );
1452
1453	#if DEBUG_RPC_VFS_FILE_DESTROY
1454	cycle = (uint32_t)hal_get_cycles();
1455	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1456	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1457	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1458	#endif
1459	}
1460
1461	/////////////////////////////////////////////
1462	void rpc_vfs_file_destroy_server( xptr_t xp )
1463	{
1464	#if DEBUG_RPC_VFS_FILE_DESTROY
1465	thread_t * this = CURRENT_THREAD;
1466	uint32_t cycle = (uint32_t)hal_get_cycles();
1467	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1468	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1469	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1470	#endif
1471
1472	vfs_file_t * file;
1473
1474	// get client cluster identifier and pointer on RPC descriptor
1475	cxy_t client_cxy = GET_CXY( xp );
1476	rpc_desc_t * desc = GET_PTR( xp );
1477
1478	// get arguments "dentry" from client RPC descriptor
1479	file = (vfs_file_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1480
1481	// call local kernel function
1482	vfs_file_destroy( file );
1483
1484	#if DEBUG_RPC_VFS_FILE_DESTROY
1485	cycle = (uint32_t)hal_get_cycles();
1486	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1487	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1488	__FUNCTION__, this->trdid, this->process->pid, this->core->lid, cycle );
1489	#endif
1490	}
1491
1492	/////////////////////////////////////////////////////////////////////////////////////////
1493	// [16] Marshaling functions attached to RPC_VFS_INODE_LOAD (blocking)
1494	/////////////////////////////////////////////////////////////////////////////////////////
1495
1496	//////////////////////////////////////////////////
1497	void rpc_vfs_inode_load_client( cxy_t cxy,
1498	vfs_inode_t * parent_inode, // in
1499	char * name, // in
1500	xptr_t child_inode_xp, // in
1501	error_t * error ) // out
1502	{
1503	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1504
1505	// initialise RPC descriptor header
1506	rpc_desc_t rpc;
1507	rpc.index = RPC_VFS_INODE_LOAD;
1508	rpc.blocking = true;
1509	rpc.responses = 1;
1510
1511	// set input arguments in RPC descriptor
1512	rpc.args[0] = (uint64_t)(intptr_t)parent_inode;
1513	rpc.args[1] = (uint64_t)(intptr_t)name;
1514	rpc.args[2] = (uint64_t)child_inode_xp;
1515
1516	// register RPC request in remote RPC fifo
1517	rpc_send( cxy , &rpc );
1518
1519	// get output values from RPC descriptor
1520	*error = (error_t)rpc.args[3];
1521
1522	}
1523
1524	///////////////////////////////////////////
1525	void rpc_vfs_inode_load_server( xptr_t xp )
1526	{
1527	error_t error;
1528	vfs_inode_t * parent;
1529	xptr_t child_xp;
1530	char * name;
1531
1532	char name_copy[CONFIG_VFS_MAX_NAME_LENGTH];
1533
1534	// get client cluster identifier and pointer on RPC descriptor
1535	cxy_t client_cxy = GET_CXY( xp );
1536	rpc_desc_t * desc = GET_PTR( xp );
1537
1538	// get arguments "parent", "name", and "child_xp"
1539	parent = (vfs_inode_t*)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
1540	name = (char*)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
1541	child_xp = (xptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[2]));
1542
1543	// get name local copy
1544	hal_remote_strcpy( XPTR( local_cxy , name_copy ) ,
1545	XPTR( client_cxy , name ) );
1546
1547	// call the kernel function
1548	error = vfs_inode_load( parent , name_copy , child_xp );
1549
1550	// set output argument
1551	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
1552
1553	}
1554
1555	/////////////////////////////////////////////////////////////////////////////////////////
1556	// [17] Marshaling functions attached to RPC_VFS_MAPPER_LOAD_ALL (blocking)
1557	/////////////////////////////////////////////////////////////////////////////////////////
1558
1559	///////////////////////////////////////////////////////
1560	void rpc_vfs_mapper_load_all_client( cxy_t cxy,
1561	vfs_inode_t * inode, // in
1562	error_t * error ) // out
1563	{
1564	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1565
1566	// initialise RPC descriptor header
1567	rpc_desc_t rpc;
1568	rpc.index = RPC_VFS_MAPPER_LOAD_ALL;
1569	rpc.blocking = true;
1570	rpc.responses = 1;
1571
1572	// set input arguments in RPC descriptor
1573	rpc.args[0] = (uint64_t)(intptr_t)inode;
1574
1575	// register RPC request in remote RPC fifo
1576	rpc_send( cxy , &rpc );
1577
1578	// get output values from RPC descriptor
1579	*error = (error_t)rpc.args[1];
1580
1581	}
1582
1583	////////////////////////////////////////////////
1584	void rpc_vfs_mapper_load_all_server( xptr_t xp )
1585	{
1586	error_t error;
1587	vfs_inode_t * inode;
1588
1589	// get client cluster identifier and pointer on RPC descriptor
1590	cxy_t client_cxy = GET_CXY( xp );
1591	rpc_desc_t * desc = GET_PTR( xp );
1592
1593	// get arguments "parent", "name", and "child_xp"
1594	inode = (vfs_inode_t*)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
1595
1596	// call the kernel function
1597	error = vfs_mapper_load_all( inode );
1598
1599	// set output argument
1600	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
1601
1602	}
1603
1604	/////////////////////////////////////////////////////////////////////////////////////////
1605	// [18] Marshaling functions attached to RPC_FATFS_GET_CLUSTER (blocking)
1606	/////////////////////////////////////////////////////////////////////////////////////////
1607
1608	//////////////////////////////////////////////////
1609	void rpc_fatfs_get_cluster_client( cxy_t cxy,
1610	mapper_t * mapper, // in
1611	uint32_t first, // in
1612	uint32_t index, // in
1613	uint32_t * cluster, // out
1614	error_t * error ) // out
1615	{
1616	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1617
1618	// initialise RPC descriptor header
1619	rpc_desc_t rpc;
1620	rpc.index = RPC_FATFS_GET_CLUSTER;
1621	rpc.blocking = true;
1622	rpc.responses = 1;
1623
1624	// set input arguments in RPC descriptor
1625	rpc.args[0] = (uint64_t)(intptr_t)mapper;
1626	rpc.args[1] = (uint64_t)first;
1627	rpc.args[2] = (uint64_t)index;
1628
1629	// register RPC request in remote RPC fifo
1630	rpc_send( cxy , &rpc );
1631
1632	// get output argument from rpc descriptor
1633	*cluster = (uint32_t)rpc.args[3];
1634	*error = (error_t)rpc.args[4];
1635
1636	}
1637
1638	//////////////////////////////////////////////
1639	void rpc_fatfs_get_cluster_server( xptr_t xp )
1640	{
1641	mapper_t * mapper;
1642	uint32_t first;
1643	uint32_t index;
1644	uint32_t cluster;
1645	error_t error;
1646
1647	// get client cluster identifier and pointer on RPC descriptor
1648	cxy_t client_cxy = GET_CXY( xp );
1649	rpc_desc_t * desc = GET_PTR( xp );
1650
1651	// get input arguments
1652	mapper = (mapper_t *)(intptr_t)hal_remote_lpt( XPTR( client_cxy , &desc->args[0] ) );
1653	first = (uint32_t) hal_remote_l32 ( XPTR( client_cxy , &desc->args[1] ) );
1654	index = (uint32_t) hal_remote_l32 ( XPTR( client_cxy , &desc->args[2] ) );
1655
1656	// call the kernel function
1657	error = fatfs_get_cluster( mapper , first , index , &cluster );
1658
1659	// set output argument
1660	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)cluster );
1661	hal_remote_s64( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
1662
1663	}
1664
1665	/////////////////////////////////////////////////////////////////////////////////////////
1666	// [20] Marshaling functions attached to RPC_VMM_GET_VSEG (blocking)
1667	/////////////////////////////////////////////////////////////////////////////////////////
1668
1669	//////////////////////////////////////////////////
1670	void rpc_vmm_get_vseg_client( cxy_t cxy,
1671	process_t * process, // in
1672	intptr_t vaddr, // in
1673	xptr_t * vseg_xp, // out
1674	error_t * error ) // out
1675	{
1676	#if DEBUG_RPC_VMM_GET_VSEG
1677	thread_t * this = CURRENT_THREAD;
1678	uint32_t cycle = (uint32_t)hal_get_cycles();
1679	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1680	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1681	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1682	#endif
1683
1684	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1685
1686	// initialise RPC descriptor header
1687	rpc_desc_t rpc;
1688	rpc.index = RPC_VMM_GET_VSEG;
1689	rpc.blocking = true;
1690	rpc.responses = 1;
1691
1692	// set input arguments in RPC descriptor
1693	rpc.args[0] = (uint64_t)(intptr_t)process;
1694	rpc.args[1] = (uint64_t)vaddr;
1695
1696	// register RPC request in remote RPC fifo
1697	rpc_send( cxy , &rpc );
1698
1699	// get output argument from rpc descriptor
1700	*vseg_xp = rpc.args[2];
1701	*error = (error_t)rpc.args[3];
1702
1703	#if DEBUG_RPC_VMM_GET_VSEG
1704	cycle = (uint32_t)hal_get_cycles();
1705	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1706	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1707	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1708	#endif
1709	}
1710
1711	/////////////////////////////////////////
1712	void rpc_vmm_get_vseg_server( xptr_t xp )
1713	{
1714	#if DEBUG_RPC_VMM_GET_VSEG
1715	thread_t * this = CURRENT_THREAD;
1716	uint32_t cycle = (uint32_t)hal_get_cycles();
1717	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1718	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1719	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1720	#endif
1721
1722	process_t * process;
1723	intptr_t vaddr;
1724	vseg_t * vseg_ptr;
1725	xptr_t vseg_xp;
1726	error_t error;
1727
1728	// get client cluster identifier and pointer on RPC descriptor
1729	cxy_t client_cxy = GET_CXY( xp );
1730	rpc_desc_t * desc = GET_PTR( xp );
1731
1732	// get input argument from client RPC descriptor
1733	process = (process_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1734	vaddr = (intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1735
1736	// call local kernel function
1737	error = vmm_get_vseg( process , vaddr , &vseg_ptr );
1738
1739	// set output arguments to client RPC descriptor
1740	vseg_xp = XPTR( local_cxy , vseg_ptr );
1741	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)vseg_xp );
1742	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
1743
1744	#if DEBUG_RPC_VMM_GET_VSEG
1745	cycle = (uint32_t)hal_get_cycles();
1746	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1747	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1748	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1749	#endif
1750	}
1751
1752
1753	/////////////////////////////////////////////////////////////////////////////////////////
1754	// [21] Marshaling functions attached to RPC_VMM_GET_PTE (blocking)
1755	/////////////////////////////////////////////////////////////////////////////////////////
1756
1757	////////////////////////////////////////////
1758	void rpc_vmm_get_pte_client( cxy_t cxy,
1759	process_t * process, // in
1760	vpn_t vpn, // in
1761	bool_t cow, // in
1762	uint32_t * attr, // out
1763	ppn_t * ppn, // out
1764	error_t * error ) // out
1765	{
1766	#if DEBUG_RPC_VMM_GET_PTE
1767	thread_t * this = CURRENT_THREAD;
1768	uint32_t cycle = (uint32_t)hal_get_cycles();
1769	if( cycle > DEBUG_RPC_VMM_GET_PTE )
1770	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1771	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1772	#endif
1773
1774	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1775
1776	// initialise RPC descriptor header
1777	rpc_desc_t rpc;
1778	rpc.index = RPC_VMM_GET_PTE;
1779	rpc.blocking = true;
1780	rpc.responses = 1;
1781
1782	// set input arguments in RPC descriptor
1783	rpc.args[0] = (uint64_t)(intptr_t)process;
1784	rpc.args[1] = (uint64_t)vpn;
1785	rpc.args[2] = (uint64_t)cow;
1786
1787	// register RPC request in remote RPC fifo
1788	rpc_send( cxy , &rpc );
1789
1790	// get output argument from rpc descriptor
1791	*attr = (uint32_t)rpc.args[3];
1792	*ppn = (ppn_t)rpc.args[4];
1793	*error = (error_t)rpc.args[5];
1794
1795	#if DEBUG_RPC_VMM_GET_PTE
1796	cycle = (uint32_t)hal_get_cycles();
1797	if( cycle > DEBUG_RPC_VMM_GET_PTE )
1798	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1799	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1800	#endif
1801	}
1802
1803	////////////////////////////////////////
1804	void rpc_vmm_get_pte_server( xptr_t xp )
1805	{
1806	#if DEBUG_RPC_VMM_GET_PTE
1807	thread_t * this = CURRENT_THREAD;
1808	uint32_t cycle = (uint32_t)hal_get_cycles();
1809	if( cycle > DEBUG_RPC_VMM_GET_PTE )
1810	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1811	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1812	#endif
1813
1814	process_t * process;
1815	vpn_t vpn;
1816	bool_t cow;
1817	uint32_t attr;
1818	ppn_t ppn;
1819	error_t error;
1820
1821	// get client cluster identifier and pointer on RPC descriptor
1822	cxy_t client_cxy = GET_CXY( xp );
1823	rpc_desc_t * desc = GET_PTR( xp );
1824
1825	// get input argument "process" & "vpn" from client RPC descriptor
1826	process = (process_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1827	vpn = (vpn_t) hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1828	cow = (bool_t) hal_remote_l64( XPTR( client_cxy , &desc->args[2] ) );
1829
1830	// call local kernel function
1831	error = vmm_get_pte( process , vpn , cow , &attr , &ppn );
1832
1833	// set output argument "attr" & "ppn" to client RPC descriptor
1834	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)attr );
1835	hal_remote_s64( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)ppn );
1836	hal_remote_s64( XPTR( client_cxy , &desc->args[5] ) , (uint64_t)error );
1837
1838	#if DEBUG_RPC_VMM_GET_PTE
1839	cycle = (uint32_t)hal_get_cycles();
1840	if( cycle > DEBUG_RPC_VMM_GET_PTE )
1841	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1842	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1843	#endif
1844	}
1845
1846	/////////////////////////////////////////////////////////////////////////////////////////
1847	// [22] Marshaling functions attached to RPC_KCM_ALLOC (blocking)
1848	/////////////////////////////////////////////////////////////////////////////////////////
1849
1850	//////////////////////////////////////////
1851	void rpc_kcm_alloc_client( cxy_t cxy,
1852	uint32_t kmem_type, // in
1853	xptr_t * buf_xp ) // out
1854	{
1855	#if DEBUG_RPC_KCM_ALLOC
1856	thread_t * this = CURRENT_THREAD;
1857	uint32_t cycle = (uint32_t)hal_get_cycles();
1858	if( cycle > DEBUG_RPC_KCM_ALLOC )
1859	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1860	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1861	#endif
1862
1863	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1864
1865	// initialise RPC descriptor header
1866	rpc_desc_t rpc;
1867	rpc.index = RPC_KCM_ALLOC;
1868	rpc.blocking = true;
1869	rpc.responses = 1;
1870
1871	// set input arguments in RPC descriptor
1872	rpc.args[0] = (uint64_t)kmem_type;
1873
1874	// register RPC request in remote RPC fifo
1875	rpc_send( cxy , &rpc );
1876
1877	// get output arguments from RPC descriptor
1878	*buf_xp = (xptr_t)rpc.args[1];
1879
1880	#if DEBUG_RPC_KCM_ALLOC
1881	cycle = (uint32_t)hal_get_cycles();
1882	if( cycle > DEBUG_RPC_KCM_ALLOC )
1883	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1884	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1885	#endif
1886	}
1887
1888	//////////////////////////////////////
1889	void rpc_kcm_alloc_server( xptr_t xp )
1890	{
1891	#if DEBUG_RPC_KCM_ALLOC
1892	thread_t * this = CURRENT_THREAD;
1893	uint32_t cycle = (uint32_t)hal_get_cycles();
1894	if( cycle > DEBUG_RPC_KCM_ALLOC )
1895	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1896	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1897	#endif
1898
1899	// get client cluster identifier and pointer on RPC descriptor
1900	cxy_t client_cxy = GET_CXY( xp );
1901	rpc_desc_t * desc = GET_PTR( xp );
1902
1903	// get input argument "kmem_type" from client RPC descriptor
1904	uint32_t kmem_type = (uint32_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1905
1906	// allocates memory for kcm
1907	kmem_req_t req;
1908	req.type = kmem_type;
1909	req.flags = AF_ZERO;
1910	void * buf_ptr = kmem_alloc( &req );
1911
1912	// set output argument
1913	xptr_t buf_xp = XPTR( local_cxy , buf_ptr );
1914	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)buf_xp );
1915
1916	#if DEBUG_RPC_KCM_ALLOC
1917	cycle = (uint32_t)hal_get_cycles();
1918	if( cycle > DEBUG_RPC_KCM_ALLOC )
1919	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1920	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1921	#endif
1922	}
1923
1924	/////////////////////////////////////////////////////////////////////////////////////////
1925	// [23] Marshaling functions attached to RPC_KCM_FREE (blocking)
1926	/////////////////////////////////////////////////////////////////////////////////////////
1927
1928	/////////////////////////////////////////
1929	void rpc_kcm_free_client( cxy_t cxy,
1930	void * buf, // in
1931	uint32_t kmem_type ) // in
1932	{
1933	#if DEBUG_RPC_KCM_FREE
1934	thread_t * this = CURRENT_THREAD;
1935	uint32_t cycle = (uint32_t)hal_get_cycles();
1936	if( cycle > DEBUG_RPC_KCM_FREE )
1937	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1938	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1939	#endif
1940
1941	assert( (cxy != local_cxy) , "target cluster is not remote\n");
1942
1943	// initialise RPC descriptor header
1944	rpc_desc_t rpc;
1945	rpc.index = RPC_KCM_FREE;
1946	rpc.blocking = true;
1947	rpc.responses = 1;
1948
1949	// set input arguments in RPC descriptor
1950	rpc.args[0] = (uint64_t)(intptr_t)buf;
1951	rpc.args[1] = (uint64_t)kmem_type;
1952
1953	// register RPC request in remote RPC fifo
1954	rpc_send( cxy , &rpc );
1955
1956	#if DEBUG_RPC_KCM_FREE
1957	cycle = (uint32_t)hal_get_cycles();
1958	if( cycle > DEBUG_RPC_KCM_FREE )
1959	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1960	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1961	#endif
1962	}
1963
1964	/////////////////////////////////////
1965	void rpc_kcm_free_server( xptr_t xp )
1966	{
1967	#if DEBUG_RPC_KCM_FREE
1968	thread_t * this = CURRENT_THREAD;
1969	uint32_t cycle = (uint32_t)hal_get_cycles();
1970	if( cycle > DEBUG_RPC_KCM_FREE )
1971	printk("\n[DBG] %s : thread %x in process %x on core %d enter / cycle %d\n",
1972	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1973	#endif
1974
1975	// get client cluster identifier and pointer on RPC descriptor
1976	cxy_t client_cxy = GET_CXY( xp );
1977	rpc_desc_t * desc = GET_PTR( xp );
1978
1979	// get input arguments "buf" and "kmem_type" from client RPC descriptor
1980	void * buf = (void *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1981	uint32_t kmem_type = (uint32_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1982
1983	// releases memory
1984	kmem_req_t req;
1985	req.type = kmem_type;
1986	req.ptr = buf;
1987	kmem_free( &req );
1988
1989	#if DEBUG_RPC_KCM_FREE
1990	cycle = (uint32_t)hal_get_cycles();
1991	if( cycle > DEBUG_RPC_KCM_FREE )
1992	printk("\n[DBG] %s : thread %x in process %x on core %d exit / cycle %d\n",
1993	__FUNCTION__, this->trdid, this->process->pid, this->core->lid , cycle );
1994	#endif
1995	}
1996
1997	/////////////////////////////////////////////////////////////////////////////////////////
1998	// [24] Marshaling functions attached to RPC_MAPPER_MOVE_BUFFER
1999	/////////////////////////////////////////////////////////////////////////////////////////
2000
2001	///////////////////////////////////////////////////
2002	void rpc_mapper_move_buffer_client( cxy_t cxy,
2003	mapper_t * mapper, // in
2004	bool_t to_buffer, // in
2005	bool_t is_user, // in
2006	uint32_t file_offset, // in
2007	uint64_t buffer, // in
2008	uint32_t size, // in
2009	error_t * error ) // out
2010	{
2011	assert( (cxy != local_cxy) , "target cluster is not remote\n");
2012
2013	// initialise RPC descriptor header
2014	rpc_desc_t rpc;
2015	rpc.index = RPC_MAPPER_MOVE_BUFFER;
2016	rpc.blocking = true;
2017	rpc.responses = 1;
2018
2019	// set input arguments in RPC descriptor
2020	rpc.args[0] = (uint64_t)(intptr_t)mapper;
2021	rpc.args[1] = (uint64_t)to_buffer;
2022	rpc.args[2] = (uint64_t)is_user;
2023	rpc.args[3] = (uint64_t)file_offset;
2024	rpc.args[4] = (uint64_t)buffer;
2025	rpc.args[5] = (uint64_t)size;
2026
2027	// register RPC request in remote RPC fifo
2028	rpc_send( cxy , &rpc );
2029
2030	// get output values from RPC descriptor
2031	*error = (error_t)rpc.args[6];
2032
2033	}
2034
2035	///////////////////////////////////////////////
2036	void rpc_mapper_move_buffer_server( xptr_t xp )
2037	{
2038	mapper_t * mapper;
2039	bool_t to_buffer;
2040	bool_t is_user;
2041	uint32_t file_offset;
2042	void * user_buffer;
2043	xptr_t kern_buffer;
2044	uint32_t size;
2045	error_t error;
2046
2047	// get client cluster identifier and pointer on RPC descriptor
2048	cxy_t client_cxy = GET_CXY( xp );
2049	rpc_desc_t * desc = GET_PTR( xp );
2050
2051	// get arguments from client RPC descriptor
2052	mapper = (mapper_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
2053	to_buffer = hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
2054	is_user = hal_remote_l64( XPTR( client_cxy , &desc->args[2] ) );
2055	file_offset = hal_remote_l64( XPTR( client_cxy , &desc->args[3] ) );
2056	size = hal_remote_l64( XPTR( client_cxy , &desc->args[5] ) );
2057
2058	// call local kernel function
2059	if( is_user )
2060	{
2061	user_buffer = (void *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[4] ) );
2062
2063	error = mapper_move_user( mapper,
2064	to_buffer,
2065	file_offset,
2066	user_buffer,
2067	size );
2068	}
2069	else
2070	{
2071	kern_buffer = (xptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[4] ) );
2072
2073	error = mapper_move_kernel( mapper,
2074	to_buffer,
2075	file_offset,
2076	kern_buffer,
2077	size );
2078	}
2079
2080	// set output argument to client RPC descriptor
2081	hal_remote_s64( XPTR( client_cxy , &desc->args[6] ) , (uint64_t)error );
2082
2083	}
2084
2085	/////////////////////////////////////////////////////////////////////////////////////////
2086	// [25] Marshaling functions attached to RPC_MAPPER_GET_PAGE (blocking)
2087	/////////////////////////////////////////////////////////////////////////////////////////
2088
2089	///////////////////////////////////////////////////////
2090	void rpc_mapper_get_page_client( cxy_t cxy,
2091	struct mapper_s * mapper, // in
2092	uint32_t index, // in
2093	page_t ** page ) // out
2094	{
2095	assert( (cxy != local_cxy) , "target cluster is not remote\n");
2096
2097	// initialise RPC descriptor header
2098	rpc_desc_t rpc;
2099	rpc.index = RPC_MAPPER_GET_PAGE;
2100	rpc.blocking = true;
2101	rpc.responses = 1;
2102
2103	// set input arguments in RPC descriptor
2104	rpc.args[0] = (uint64_t)(intptr_t)mapper;
2105	rpc.args[1] = (uint64_t)index;
2106
2107	// register RPC request in remote RPC fifo
2108	rpc_send( cxy , &rpc );
2109
2110	// get output values from RPC descriptor
2111	page = (page_t )(intptr_t)rpc.args[2];
2112
2113	}
2114
2115	////////////////////////////////////////////
2116	void rpc_mapper_get_page_server( xptr_t xp )
2117	{
2118	// get client cluster identifier and pointer on RPC descriptor
2119	cxy_t cxy = GET_CXY( xp );
2120	rpc_desc_t * desc = GET_PTR( xp );
2121
2122	// get input arguments from client RPC descriptor
2123	mapper_t * mapper = (mapper_t *)(intptr_t)hal_remote_l64( XPTR( cxy , &desc->args[0] ) );
2124	uint32_t index = (uint32_t) hal_remote_l64( XPTR( cxy , &desc->args[1] ) );
2125
2126	// call local pmem allocator
2127	page_t * page = mapper_get_page( mapper , index );
2128
2129	// set output arguments into client RPC descriptor
2130	hal_remote_s64( XPTR( cxy , &desc->args[1] ) , (uint64_t)(intptr_t)page );
2131
2132	}
2133
2134	/////////////////////////////////////////////////////////////////////////////////////////
2135	// [26] Marshaling functions attached to RPC_VMM_CREATE_VSEG (blocking)
2136	/////////////////////////////////////////////////////////////////////////////////////////
2137
2138	////////////////////////////////////////////////////////
2139	void rpc_vmm_create_vseg_client( cxy_t cxy,
2140	struct process_s * process,
2141	vseg_type_t type,
2142	intptr_t base,
2143	uint32_t size,
2144	uint32_t file_offset,
2145	uint32_t file_size,
2146	xptr_t mapper_xp,
2147	cxy_t vseg_cxy,
2148	struct vseg_s ** vseg )
2149	{
2150	assert( (cxy != local_cxy) , "target cluster is not remote\n");
2151
2152	// initialise RPC descriptor header
2153	rpc_desc_t rpc;
2154	rpc.index = RPC_VMM_CREATE_VSEG;
2155	rpc.blocking = true;
2156	rpc.responses = 1;
2157
2158	// set input arguments in RPC descriptor
2159	rpc.args[0] = (uint64_t)(intptr_t)process;
2160	rpc.args[1] = (uint64_t)type;
2161	rpc.args[2] = (uint64_t)base;
2162	rpc.args[3] = (uint64_t)size;
2163	rpc.args[4] = (uint64_t)file_offset;
2164	rpc.args[5] = (uint64_t)file_size;
2165	rpc.args[6] = (uint64_t)mapper_xp;
2166	rpc.args[7] = (uint64_t)vseg_cxy;
2167
2168	// register RPC request in remote RPC fifo
2169	rpc_send( cxy , &rpc );
2170
2171	// get output values from RPC descriptor
2172	vseg = (vseg_t )(intptr_t)rpc.args[8];
2173
2174	}
2175
2176	////////////////////////////////////////////
2177	void rpc_vmm_create_vseg_server( xptr_t xp )
2178	{
2179	// get client cluster identifier and pointer on RPC descriptor
2180	cxy_t cxy = GET_CXY( xp );
2181	rpc_desc_t * desc = GET_PTR( xp );
2182
2183	// get input arguments from client RPC descriptor
2184	process_t * process = (process_t *)(intptr_t)hal_remote_l64( XPTR(cxy , &desc->args[0]));
2185	vseg_type_t type = (vseg_type_t)(uint32_t)hal_remote_l64( XPTR(cxy , &desc->args[1]));
2186	intptr_t base = (intptr_t) hal_remote_l64( XPTR(cxy , &desc->args[2]));
2187	uint32_t size = (uint32_t) hal_remote_l64( XPTR(cxy , &desc->args[3]));
2188	uint32_t file_offset = (uint32_t) hal_remote_l64( XPTR(cxy , &desc->args[4]));
2189	uint32_t file_size = (uint32_t) hal_remote_l64( XPTR(cxy , &desc->args[5]));
2190	xptr_t mapper_xp = (xptr_t) hal_remote_l64( XPTR(cxy , &desc->args[6]));
2191	cxy_t vseg_cxy = (cxy_t)(uint32_t) hal_remote_l64( XPTR(cxy , &desc->args[7]));
2192
2193	// call local kernel function
2194	vseg_t * vseg = vmm_create_vseg( process,
2195	type,
2196	base,
2197	size,
2198	file_offset,
2199	file_size,
2200	mapper_xp,
2201	vseg_cxy );
2202
2203	// set output arguments into client RPC descriptor
2204	hal_remote_s64( XPTR( cxy , &desc->args[8] ) , (uint64_t)(intptr_t)vseg );
2205
2206	}
2207
2208	/////////////////////////////////////////////////////////////////////////////////////////
2209	// [27] undefined slot
2210	/////////////////////////////////////////////////////////////////////////////////////////
2211
2212	/////////////////////////////////////////////////////////////////////////////////////////
2213	// [28] Marshaling functions attached to RPC_VMM_SET_COW (blocking)
2214	/////////////////////////////////////////////////////////////////////////////////////////
2215
2216	/////////////////////////////////////////////
2217	void rpc_vmm_set_cow_client( cxy_t cxy,
2218	process_t * process )
2219	{
2220	assert( (cxy != local_cxy) , "target cluster is not remote\n");
2221
2222	// initialise RPC descriptor header
2223	rpc_desc_t rpc;
2224	rpc.index = RPC_VMM_SET_COW;
2225	rpc.blocking = true;
2226	rpc.responses = 1;
2227
2228	// set input arguments in RPC descriptor
2229	rpc.args[0] = (uint64_t)(intptr_t)process;
2230
2231	// register RPC request in remote RPC fifo
2232	rpc_send( cxy , &rpc );
2233
2234	}
2235
2236	////////////////////////////////////////
2237	void rpc_vmm_set_cow_server( xptr_t xp )
2238	{
2239	process_t * process;
2240
2241	// get client cluster identifier and pointer on RPC descriptor
2242	cxy_t cxy = GET_CXY( xp );
2243	rpc_desc_t * desc = GET_PTR( xp );
2244
2245	// get input arguments from client RPC descriptor
2246	process = (process_t *)(intptr_t)hal_remote_l64( XPTR(cxy , &desc->args[0]));
2247
2248	// call local kernel function
2249	vmm_set_cow( process );
2250
2251	}
2252
2253	/////////////////////////////////////////////////////////////////////////////////////////
2254	// [29] Marshaling functions attached to RPC_VMM_DISPLAY (blocking)
2255	/////////////////////////////////////////////////////////////////////////////////////////
2256
2257	/////////////////////////////////////////////
2258	void rpc_vmm_display_client( cxy_t cxy,
2259	process_t * process,
2260	bool_t detailed )
2261	{
2262	assert( (cxy != local_cxy) , "target cluster is not remote\n");
2263
2264	// initialise RPC descriptor header
2265	rpc_desc_t rpc;
2266	rpc.index = RPC_VMM_DISPLAY;
2267	rpc.blocking = true;
2268	rpc.responses = 1;
2269
2270	// set input arguments in RPC descriptor
2271	rpc.args[0] = (uint64_t)(intptr_t)process;
2272	rpc.args[1] = (uint64_t)detailed;
2273
2274	// register RPC request in remote RPC fifo
2275	rpc_send( cxy , &rpc );
2276
2277	}
2278
2279	////////////////////////////////////////
2280	void rpc_vmm_display_server( xptr_t xp )
2281	{
2282	process_t * process;
2283	bool_t detailed;
2284
2285	// get client cluster identifier and pointer on RPC descriptor
2286	cxy_t cxy = GET_CXY( xp );
2287	rpc_desc_t * desc = GET_PTR( xp );
2288
2289	// get input arguments from client RPC descriptor
2290	process = (process_t *)(intptr_t)hal_remote_l64( XPTR(cxy , &desc->args[0]));
2291	detailed = (bool_t) hal_remote_l64( XPTR(cxy , &desc->args[1]));
2292
2293	// call local kernel function
2294	vmm_display( process , detailed );
2295
2296	}
2297
2298

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